Dry battery type: aluminum tube electric bottle opener Visible transparent cover, cool blue light when opening the bottle, foil cutter base, three-in-one cylinder combination a, Bottle opener, USB charging cable, paper cutter ABS material, light and comfortable, practical and compact, and economical. Food Grade Drill One-Touch Durable Stainless Steel Induction Electric Bottle Opener Features Easy to use. According to the positive and negative signs, install battery #5 correctly. When using it, press and hold the "start button" below to remove the cork, press and hold the upper "rear button" to take out the cork, operation and use] Use electric bottle opener Before, according to the + and - signs in the battery compartment, install 4 AA batteries correctly; It is recommended to use 4 AA alkaline dry batteries, which are high energy batteries, power batteries (instant discharge capacity 3-4A), which can provide sufficient instant discharge for the electric bottle opener to open the bottle to ensure smooth opening. Applicable gift-giving occasions: weddings, birthdays, holidays, housewarming, all venues, trade fairs, advertising promotions, employee benefits, anniversary celebrations. . . . . .